Exhaust mechanism of electric pressure cooker

Abstract

The utility model relates to the technical field of electric pressure cooker, propose a kind of exhaust mechanism of pressure cooker, including the pressure-limiting valve for being arranged on cover and being used to open and close exhaust passage, the movable connecting rod, push block assembly and exhaust button are equipped on the cover, exhaust button discharges the gas in pressure cooker under pressing state;Connecting rod one end is cooperatively arranged with pressure-limiting valve, push block assembly is operable to act on connecting rod under the closed state of exhaust passage, to drive connecting rod to drive pressure-limiting valve movement and open exhaust passage;Exhaust button is operable to drive push block assembly reset operation under the open state of exhaust passage, and trigger connecting rod and pressure-limiting valve reset operation to initial position in sequence, to close exhaust passage.

Description

Technical Field

[0001] This utility model relates to the technical field of electric pressure cookers, specifically to an exhaust mechanism for an electric pressure cooker. Background Technology

[0002] Existing electric pressure cookers switch between pressure cooker and rice cooker modes by pressing down a lever (connecting rod) with a knob to open the pressure relief valve, thus switching to rice cooker mode. Alternatively, electric pressure cookers have a lever that moves left and right. Pushing the lever to one side presses down the lever to open the pressure relief valve. When the lever is pushed all the way down, the pressure relief valve is lifted. However, it is common for users to forget to return the lever to its original position and then use the cooker to cook again. When the user is not present, the electric pressure cooker may overflow when cooking porridge or soup, spraying water everywhere.

[0003] The above two venting structures have the drawback that users may easily forget to reset the lever or knob. Users are used to pressing the venting button before opening the pressure cooker to avoid pressure buildup inside the pot.

[0004] Therefore, it is necessary to design a mechanism that allows the pressure relief valve to reset and close the exhaust channel when the user presses the exhaust button when opening the lid of the electric pressure cooker. Utility Model Content

[0005] This invention proposes a venting mechanism for a pressure cooker. By incorporating a movable connecting rod, a pusher assembly, and a venting button on the lid, a collaborative venting control system is constructed. Compared to traditional electric pressure cookers that require manual operation of knobs or levers to open the venting channel and are easily forgotten to reset, this design allows the venting button to release gas from the pressure cooker when pressed. Furthermore, when the venting channel is open, the venting button, when pressed, drives the pusher assembly to reset, triggering the connecting rod and pressure relief valve to sequentially reset to their initial positions to close the venting channel. This means that after cooking, the user only needs to press the venting button as usual, and the venting mechanism will automatically reset, eliminating the need for separate operation of the pusher assembly.

[0006] A pressure cooker exhaust mechanism designed for this purpose includes a pressure limiting valve disposed on the lid and used to open and close the exhaust passage. The lid is provided with a movable connecting rod, a push block assembly and an exhaust button. When the exhaust button is pressed, it discharges the gas inside the pressure cooker.

[0007] One end of the connecting rod is configured to cooperate with the pressure relief valve. When the exhaust passage is closed, the push block assembly can operate on the connecting rod to drive the connecting rod to move the pressure relief valve and open the exhaust passage.

[0008] When the exhaust channel is open, the exhaust button can operably drive the push block assembly to reset and trigger the connecting rod and pressure relief valve to reset to their initial positions in sequence, thereby closing the exhaust channel.

[0009] The connecting rod is rotatably mounted on the inside of the cover. When the exhaust channel is closed, the connecting rod is driven to rotate by operating the push block assembly and act on the pressure relief valve.

[0010] A flexible fixing element is provided on the inner side of the cover body at the position of the connecting rod near the pressure relief valve. One end of the connecting rod is inserted into the flexible fixing element, and the flexible fixing element deforms during the rotation of the connecting rod.

[0011] The inner side of the cover is provided with a limiting member, and the connecting rod is provided with a rotating shaft that is rotatably connected to the inner side of the cover. One end of the rotating shaft is limited between the limiting member and the inner side of the cover.

[0012] The pusher assembly includes an operating component and a pushing component connected to the operating component. The operating component and the pushing component are slidably connected to the cover body. One end of the operating component protrudes from the outside of the cover body, and the pushing component is disposed on the inside of the cover body.

[0013] The operating component slides on the cover when the exhaust channel is closed, and drives the pushing component to act on the connecting rod.

[0014] The cover is provided with a sliding groove, one end of the operating component is limited in the sliding groove, and the operating component is provided with a connecting post that is connected to the pushing component.

[0015] The inner side of the cover is provided with a buckle for engaging the pusher, and the buckle and the inner side of the cover form a connecting groove for sliding connection with the pusher.

[0016] The push block assembly includes a first spring, one end of which elastically acts on the inner side of the cover body, and the other end of which elastically acts on the pusher. A fastening block is provided on the inner side of the cover body, and a fastening part is provided on the pusher. When the exhaust channel is closed, the operating member slides on the cover body and drives the pusher to move. When the pusher moves to the corresponding position, the fastening part and the fastening block fasten together, locking the push block assembly on the cover body and triggering the linkage to act on the pressure relief valve, while the first spring is in a compressed state.

[0017] When the exhaust channel is open, the exhaust button can be pressed to disengage the buckle of the pusher from the buckle block, and the first spring will release its elastic force to reset the pusher assembly.

[0018] The cover is provided with a mounting groove for installing the exhaust button. A second spring is provided on the mounting groove. One end of the second spring acts elastically on the exhaust button, and the other end of the second spring acts elastically on the inside of the mounting groove, so that the exhaust button is elastically and movably set on the cover. When the exhaust button is pressed, an exhaust gap is formed between the exhaust button and the mounting groove, which connects the inside of the pressure cooker with the outside air.

[0019] The mounting slot is provided with a buckle hole, and the exhaust button is provided with an anti-disengagement buckle that is fastened to the buckle hole.

[0020] The cover is provided with an assembly groove, and a pressure relief valve is installed on the assembly groove. The assembly groove is provided with a socket for inserting the connecting rod.

[0021] The assembly groove is provided with a fixing component that is fixed to the cover body, the exhaust channel is provided on the fixing component, and the pressure relief valve is provided with a valve core for opening and closing the exhaust channel.

[0022] The beneficial technical effects of this utility model are as follows:

[0023] By incorporating a movable linkage, pusher assembly, and vent button on the lid, a collaborative venting control system is constructed. Compared to traditional electric pressure cookers that require manual operation of knobs or levers to open the venting channel and are easily forgotten to reset, this design features a vent button that releases gas from the pressure cooker when pressed. Furthermore, when the venting channel is open, the vent button, when pressed, drives the pusher assembly to reset, triggering the linkage and pressure relief valve to sequentially reset to their initial positions to close the venting channel. This means that after cooking, the user only needs to press the vent button as usual, and the venting mechanism will automatically reset, eliminating the need for separate operation of the pusher assembly. Attached Figure Description

[0024] Figure 1 This is a three-dimensional cross-sectional structural diagram of an electric pressure cooker according to an embodiment of the present invention, with the exhaust channel in a closed state.

[0025] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the lid of an electric pressure cooker according to an embodiment of the present invention, with the exhaust channel in the open state.

[0026] Figure 3 This is a three-dimensional structural diagram of a pusher assembly partially installed inside the cover body according to an embodiment of the present invention.

[0027] Figure 4 This is an exploded view of the pusher assembly structure according to an embodiment of the present invention.

[0028] Figure 5 This is a three-dimensional structural diagram showing the assembly and disassembly of the push block component and the cover body according to an embodiment of the present invention.

[0029] Figure 6 This is a three-dimensional structural diagram of a connection rod rotatably disposed within the cover body according to an embodiment of the present invention.

[0030] Figure 7 This is a three-dimensional structural diagram showing the assembly and disassembly of the exhaust button and cover body according to an embodiment of the present invention. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0032] See Figures 1-7 A pressure cooker exhaust mechanism includes a pressure limiting valve 2 disposed on a lid 1 for opening and closing an exhaust passage 23. The lid 1 is provided with a movable connecting rod 3, a push block assembly 4 and an exhaust button 5. The exhaust button 5 discharges gas from the pressure cooker when pressed.

[0033] One end of the connecting rod 3 is configured to cooperate with the pressure relief valve 2. When the exhaust passage 23 is closed, the push block assembly 4 can operate on the connecting rod 3 to drive the connecting rod 3 to move the pressure relief valve 2 and open the exhaust passage 23.

[0034] When the exhaust passage 23 is open, the exhaust button 5 can operably drive the push block assembly 4 to reset and trigger the connecting rod 3 and the pressure relief valve 2 to reset to their initial positions in sequence, so as to close the exhaust passage 23.

[0035] By incorporating a movable connecting rod 3, a pusher assembly 4, and a vent button 5 on the lid 1, a collaborative venting control system is constructed. Compared to traditional electric pressure cookers that require manual operation of knobs or levers to open the venting channel and are easily forgotten to reset, this design allows the vent button 5 to release gas from the pressure cooker when pressed. Furthermore, when the venting channel is open, the vent button 5, when pressed, drives the pusher assembly 4 to reset, triggering the connecting rod 3 and the pressure relief valve 2 to sequentially reset to their initial positions, thus closing the venting channel. This means that after cooking, the user only needs to press the vent button 5 as usual, and the venting mechanism will automatically reset, eliminating the need for separate operation of the pusher assembly 4. This effectively prevents overflow during the next cooking session due to the user forgetting to reset the pressure relief valve 2, greatly improving the safety and reliability of the electric pressure cooker, while also simplifying the user's operation and enhancing the user experience.

[0036] The connecting rod 3 is rotatably mounted on the inner side of the cover 1. When the exhaust channel 23 is in the closed state, the connecting rod 3 is driven to rotate by operating the push block assembly 4 and acts on the pressure relief valve 2.

[0037] A flexible fixing element 8 is provided on the inner side of the cover body 1 at the position of the connecting rod 3 near the pressure relief valve 2. One end of the connecting rod 3 is inserted into the flexible fixing element 8, and the flexible fixing element 8 is deformed during the rotation of the connecting rod 3.

[0038] The flexible fastener 8 serves two purposes: firstly, it can position the end of the connecting rod 3; secondly, the deformation of the flexible fastener 8 can effectively lift the pressure relief valve 2 during the lifting process of the connecting rod 3.

[0039] The inner side of the cover 1 is provided with a limiting member 6, and the connecting rod 3 is provided with a rotating shaft 7 that is rotatably connected to the inner side of the cover 1. One end of the rotating shaft 7 is limited between the limiting member 6 and the inner side of the cover 1.

[0040] In this embodiment, the inner side of the cover 1 and the connecting rod 3 are provided with two spaced connecting ears, and the connecting ears are provided with shaft holes for inserting the rotating shaft 7.

[0041] The pusher assembly 4 includes an operating member 9 and a pusher 10 connected to the operating member 9. The operating member 9 and the pusher 10 are slidably connected to the cover 1 respectively. One end of the operating member 9 protrudes and is disposed on the outer side of the cover 1, and the pusher 10 is disposed on the inner side of the cover 1.

[0042] When the exhaust channel 23 is closed, the operating component 9 slides on the cover 1 and drives the pushing component 10 to act on the connecting rod 3.

[0043] Users can easily control the pusher 10 inside the cover 1 by operating the operating part 9 on the outside of the cover 1, thereby driving the connecting rod 3 to lift the pressure relief valve 2 and open the exhaust passage 23. In addition, the operating part 9 and the pusher 10 are connected separately, making it easier to install and remove the operating part 9 and the pusher 10.

[0044] The cover 1 is provided with a sliding groove 11, one end of the operating member 9 is limited in the sliding groove 11, and the operating member 9 is provided with a connecting post 12 that is connected to the pushing member 10.

[0045] The connecting post 12 has an internally threaded cavity for inserting a screw, and the pusher 10 has a positioning slot for inserting the connecting post 12, with an internal thread inside the positioning slot. The connecting post 12 is inserted into the positioning slot, and the screw is inserted into the internally threaded cavity and the positioning slot, thus fixing the operating member 9 and the pusher 10 together.

[0046] In this embodiment, an additional screw post and screw hole are provided between the operating member 9 and the pushing member 10 to fix the operating member 9 and the pushing member 10 together.

[0047] The inner side of the cover 1 is provided with a buckle 13 for engaging the pusher 10, and the buckle 13 forms a connecting groove with the inner side of the cover 1 and slides in connection with the pusher 10.

[0048] The groove 11 provides precise guidance for the sliding of the operating member 9, ensuring that the operating member 9 can move smoothly in a predetermined direction during the sliding process.

[0049] The latch 13 forms a connecting groove with the inner side of the cover 1, allowing the pusher 10 to slide smoothly. The design of the latch 13 and the connecting groove provides stable support and a guiding structure for the sliding of the pusher 10 within the cover 1. When the pusher 10 slides within the connecting groove, it effectively prevents it from shaking or deviating from its predetermined track during movement, ensuring the stability and accuracy of the pusher 10's movement.

[0050] The push block assembly 4 includes a first spring 14. One end of the first spring 14 acts elastically on the inner side of the cover 1, and the other end of the first spring 14 acts elastically on the push member 10. A fastening block 16 is provided on the inner side of the cover 1, and a fastening part 15 is provided on the push member 10. When the exhaust channel 23 is closed, the operating member 9 slides on the cover 1 and drives the push member 10 to move. When the push member 10 moves to the corresponding position, the fastening part 15 and the fastening block 16 fasten together, locking the push block assembly 4 on the cover 1 and triggering the connecting rod 3 to act on the pressure limiting valve 2, and the first spring 14 is in a compressed state.

[0051] When the exhaust channel 23 is open, the exhaust button 5 can be pressed to disengage the buckle 15 of the pusher 10 from the buckle block 16, and the first spring 14 will release its elastic force to reset the pusher assembly 4.

[0052] In this embodiment, the push block assembly 4 is in its initial state, and the fastening part 15 of the push member 10 is suspended above the connecting rod 3. A space is formed between the fastening part 15 and the connecting rod 3 for the fastening part 15 to deform. When the exhaust channel 23 is closed, the operating member 9 slides and drives the fastening part 15 of the push member 10 to move towards the fastening block 16. Since there is a mating inclined surface between the fastening part 15 and the fastening block 16, when the fastening part 15 contacts the fastening block 16, the fastening part 15 moves downward, and the push member 10 presses down the connecting rod 3, causing the connecting rod 3 to tilt up and lift the limit valve 2. When the fastening part 15 passes the fastening block 16, the fastening part 15 resets and locks with the fastening block 16 to prevent the push block assembly 4 from retracting. The limit valve 2 remains in the lifted state, and the exhaust passage 23 is open. When the user presses the exhaust button 5 before opening the cover, since the exhaust button 5 and the fastening block 16 are adjacent, the exhaust button 5 drives the fastening part 15 to move downward and disengage from the fastening block 16 when it is pressed. After the fastening part 15 and the fastening block 16 are unlocked, the first spring 14 releases its elastic force to reset the push block assembly 4, release the lifting of the connecting rod 3, reset the connecting rod 3, and the limit valve 2 sinks down and resets, closing the exhaust passage 23.

[0053] In this embodiment, the exhaust button 5 may be marked to indicate that it is used not only for venting but also for resetting the limit valve 2, achieving dual functionality with a single button. The design of the latching part 15 and the latching block 16 enables the automatic locking function of the push block assembly 4 after the exhaust channel is opened, ensuring that the pressure limiting valve 2 remains stably open during the venting process, guaranteeing smooth venting. When the exhaust channel is open, the exhaust button 5, by pressing, disengages the latching part 15 of the push member 10 from the latching block 16, and the first spring 14 releases its elastic force to reset the push block assembly 4. This process eliminates the need for the user to manually operate the push block assembly 4 again; simply pressing the exhaust button 5 automatically resets the push block assembly 4, avoiding safety hazards such as overflow caused by forgetting to operate the parts that open the exhaust channel 23, thus greatly improving the safety and convenience of using the electric pressure cooker.

[0054] The cover 1 is provided with a mounting groove 17 for installing the exhaust button 5. A second spring 18 is provided on the mounting groove 17. One end of the second spring 18 acts elastically on the exhaust button 5, and the other end of the second spring 18 acts elastically on the inner side of the mounting groove 17, so that the exhaust button 5 is elastically and movably set on the cover 1. When the exhaust button 5 is pressed, an exhaust gap is formed between the exhaust button 5 and the mounting groove 17, which connects the inside of the pressure cooker with the outside air.

[0055] The mounting groove 17 is provided with a buckle hole 19, and the exhaust button 5 is provided with an anti-disengagement buckle 20 that is fastened to the buckle hole 19.

[0056] The cooperation between the anti-dislodgement buckle 20 and the buckle hole 19 ensures that the vent button 5 is always securely installed on the cover 1, guaranteeing the normal function of the vent button 5. The vent button 5 will not easily fall off.

[0057] The cover 1 is provided with an assembly groove 21, and the pressure relief valve 2 is installed on the assembly groove 21. The assembly groove 21 is provided with an insertion port 22 for the connecting rod 3 to extend in.

[0058] The assembly groove 21 is provided with a fixing member 24 fixed on the cover 1, the exhaust channel 23 is provided on the fixing member 24, and the pressure relief valve 2 is provided with a valve core 25 for opening and closing the exhaust channel 23.

[0059] The mounting slot 21 provides a precise installation position for the pressure relief valve 2, ensuring the accuracy and stability of its installation on the cover 1. This allows the pressure relief valve 2 to work accurately with other components, such as the connecting rod 3. The design of the spigot 22 facilitates the connection and cooperation between the connecting rod 3 and the pressure relief valve 2, allowing the connecting rod 3 to smoothly extend into the mounting slot 21 and interact with the pressure relief valve 2 to open and close the exhaust passage. This structural design makes the assembly of components such as the pressure relief valve 2 and the connecting rod 3 more compact and reasonable, improving the overall structural stability and reliability of the exhaust mechanism.

[0060] In this embodiment, a limiting block 25 for fixing the flexible fastener 8 is provided on the outside of the insertion port 22 of the assembly groove 21. A slot is formed between the limiting block 25 and the outside of the assembly groove 21. The flexible fastener 8 is inserted into the slot on both sides. The flexible fastener 8 is provided with an opening for inserting the connecting rod 3.

[0061] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pressure cooker exhaust mechanism, comprising a pressure relief valve (2) disposed on the lid (1) and used to open and close the exhaust passage (23), characterized in that: The lid (1) is provided with a movable connecting rod (3), a push block assembly (4) and an exhaust button (5). The exhaust button (5) releases the gas inside the pressure cooker when pressed. One end of the connecting rod (3) is configured to cooperate with the pressure relief valve (2). The push block assembly (4) can be operated on the connecting rod (3) when the exhaust channel (23) is closed, so as to drive the connecting rod (3) to move the pressure relief valve (2) and open the exhaust channel (23). When the exhaust button (5) is in the open state of the exhaust channel (23), it can operably drive the push block assembly (4) to reset and trigger the connecting rod (3) and the pressure relief valve (2) to reset to the initial position in sequence to close the exhaust channel (23).

2. The exhaust mechanism of the pressure cooker according to claim 1, characterized in that: The connecting rod (3) is rotatably mounted on the inside of the cover (1). When the exhaust channel (23) is closed, the connecting rod (3) is driven to rotate by the operation of the push block assembly (4) and act on the pressure relief valve (2). A flexible fastener (8) is provided on the inner side of the cover (1) at the position of the connecting rod (3) near the pressure relief valve (2). One end of the connecting rod (3) is inserted into the flexible fastener (8), and the flexible fastener (8) is deformed during the rotation of the connecting rod (3).

3. The exhaust mechanism of the pressure cooker according to claim 2, characterized in that: The cover (1) is provided with a limiting member (6) on the inner side, and the connecting rod (3) is provided with a rotating shaft (7) that is rotatably connected to the inner side of the cover (1). One end of the rotating shaft (7) is limited between the limiting member (6) and the inner side of the cover (1).

4. The exhaust mechanism of the pressure cooker according to claim 1, characterized in that: The push block assembly (4) includes an operating member (9) and a push member (10) connected to the operating member (9). The operating member (9) and the push member (10) are slidably connected to the cover (1) respectively. One end of the operating member (9) protrudes and is disposed on the outside of the cover (1), and the push member (10) is disposed on the inside of the cover (1). The operating component (9) slides on the cover (1) when the exhaust channel (23) is closed, and drives the pusher (10) to act on the connecting rod (3).

5. The venting mechanism of the pressure cooker according to claim 4, characterized in that: The cover (1) is provided with a sliding groove (11), one end of the operating member (9) is limited in the sliding groove (11), and the operating member (9) is provided with a connecting post (12) connected to the pusher (10).

6. The venting mechanism of the pressure cooker according to claim 4, characterized in that: The inner side of the cover (1) is provided with a buckle (13) for fastening the pusher (10), and the buckle (13) and the inner side of the cover (1) form a connecting groove for sliding connection with the pusher (10).

7. The venting mechanism of the pressure cooker according to claim 4, characterized in that: The push block assembly (4) includes a first spring (14), one end of the first spring (14) acts elastically on the inner side of the cover (1), and the other end of the first spring (14) acts elastically on the pusher (10). A fastening block (16) is provided on the inner side of the cover (1), and a fastening part (15) is provided on the pusher (10). When the exhaust channel (23) is closed, the operating part (9) slides on the cover (1) and drives the pusher (10) to move. When the pusher (10) moves to the corresponding position, the fastening part (15) and the fastening block (16) fasten together, so that the push block assembly (4) is locked on the cover (1) and triggers the linkage (3) to act on the pressure relief valve (2), and the first spring (14) is in a compressed state. When the exhaust button (5) is in the open state of the exhaust channel (23), it is disengaged from the fastening block (16) by pressing the fastening part (15) of the drive pusher (10), and the first spring (14) releases its elastic force to reset the pusher assembly (4).

8. The exhaust mechanism of the pressure cooker according to claim 1, characterized in that: The cover (1) is provided with a mounting groove (17) for installing the exhaust button (5). A second spring (18) is provided on the mounting groove (17). One end of the second spring (18) acts elastically on the exhaust button (5), and the other end of the second spring (18) acts elastically on the inner side of the mounting groove (17), so that the exhaust button (5) is elastically and movable on the cover (1). When the exhaust button (5) is pressed, an exhaust gap is formed between the exhaust button (5) and the mounting groove (17) to connect the inside of the pressure cooker with the outside air.

9. The exhaust mechanism of the pressure cooker according to claim 8, characterized in that: The mounting groove (17) is provided with a buckle hole (19), and the exhaust button (5) is provided with an anti-disengagement buckle (20) that is fastened to the buckle hole (19).

10. The exhaust mechanism of the pressure cooker according to claim 1, characterized in that: The cover (1) is provided with an assembly groove (21), and the pressure relief valve (2) is installed on the assembly groove (21). The assembly groove (21) is provided with a socket (22) for extending the connecting rod (3). The assembly slot (21) is provided with a fixing member (24) fixed on the cover (1), the exhaust channel (23) is provided on the fixing member (24), and the pressure relief valve (2) is provided with a valve core (25) for opening and closing the exhaust channel (23).

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